Seat Belt Buckle Switch: Testing and Inspection

Belt-fastened Sensor For Rear 3-point Belts With Belt Tensioner

- Switch ignition on.
- Connect vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 and select vehicle system "15 - Airbag" on.
- Read measured value block, display group 004.







Belt fully retracted, display on vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 : - no -
Latch plate engaged in belt buckle and belt pulled out by dimension - L -, display on vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 : - yes -
- Pull out belt as far as possible. For this purpose, display on vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 must remain - yes -.
- Retract belt as far as dimension - L - without releasing latch plate, display on vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 must remain - yes -.
- Release latch plate and slowly retract belt; at the latest when the belt has retracted as far as the last 100 mm, display must switch from -yes- to -no-.
Belt fully retracted, display on vehicle diagnostic, testing and information system VAS 5051 A or vehicle diagnostic and service information system VAS 5052 : - no -
- Dimension - L - is 300 mm for left and right belt.